Wheel for motor-vehicles.



PATENTED JAN. 21, 1908.-

" G. DJROSS.

WHEEL FOR MOTOR VEHICLES.

I Aiicvv APPLICATION FILED DEC. 28, 1906.

" enonen new noss, or: GLASGOW SCOTLAND.

' an ron iroron-vn'rrrenns;

To all whom it may concern:

Be it known thatT,.GEORGE Dow Rossbf 42 Calder street, Govanhill, Glasgow, Scot:

land, engineer,-have invented an Improved Wheel for'lVlotor-Vehicles, of which the fol-f lowing is a specification.

This invention relates to an improved construction of'wheel for motor cars and other motorvehicles.

My new wheel, which T.rnay call the co-- centric wheel consists of an ordinary pneu-' matic tired wheel surrounded by and work-' ing within a second outer wheel or ring, said .outerwheel orring being interposed between the plates.

the neumatic tire of the inner wheel and the ma The outer wheel or ring is'made larger than the inner'wheel and is free tomove relatively therewith and its internal diameter is larger than the external diameter otthe inner wheel, so that the latter, when the car is running, takes up a positioneccentric to .the outerwheel or ring. The pneumatic tire of the inner wheel nevercomes in contact withthe road and is therefore not liable to puncture and, owing to the eccentric arrange ment, it only bears on a small part of-the innerv circumference of the outer wheel withthe result that shocks and arscommunieated to the outer wheel are felt no more than with an ordinary pneumatic tired wheel. The outer wheel may be provided with a rubber or other tire.

Undermy' invention the inner wheel has at each side thereof bearings provided with anti- I 3 5 friction metal while the outer wheel has removable side. plates which bear on these hearings with a tight fit so as to exclude dust and dirt and retain thewvheel in position.

The anti-friction metal reduces the friction hearings and due to the working between the ;In order that my said invention may be properly understood I ,have hereunto appended two explanatory sheets of drawings which show, .by way of illustration or ex ample, a mode of constructing a motor car wheel.

Figure 1 is a part side viewand part vertical section-of the motor car wheel-.. Fig, 2 is a vertical cross seoti on of the same.

In carrying out -my invention 1 use an ordinary pneumatic tired wheel consisting of an inner wooden or other rirn 01, carried by s" okes b-radiating from the hub c and provlded-with a metal rim a and pneumatic tire d. vSecuredon each side of the rim a is I Specification of Letters Tatent. Application filed becember 28. 1906. seen l lo. 349.764,

between the pneumatic tire of the inner 1 wheel and the road, and consists of a wooden PatentedJ'an. 21,1908,

metal ring 6 made with two concentric out standing flanges f, f and fitted in the annular channels formed by the flanges is anti friction metal g. Surrounding this pneumatic tired wheel is an. outer wheel or ring B, whose internal diameter is greater than the external diameter of the pneumatic tired wheel. This outer wheel or ring is interposed or other rim It provided with a metal rim/i and a rubber or other tire i. The internal surface y of the rim h of the outer wheel is preferably made slightly concave and con- 79- stitutes a track or bearing surface] for the pneumatic tire d' of the inne'r wlreel. The breadth of the rim h is made just equal to the distance between the outer faces of the two anti-friction rings 9 so that lateral movement of the outer wheel relative to the inner wheel can be prevented by means of the rings or plates k, k, which are bolted or otherwise removablysecured one oneach side of the riin'h. These rings or plates besides holding 80 the outer wheel in position on the inner" wheel also serve to exclude .dust and dirt from the pneumatic tire d.

It will be seen that'the pneumatic tireof the inner wheel A bears only at its under side '85" on the surface of the rim 7b the position assumed by it relatively with the wheel'B being an eccentric one. The pneumatic tire would be inflated in the usual manner.

The car. axles being supported by the wheels A provided with the pneumatic tires d insure. the" minimum of jolt and vibration while the tires themselves being protected from contact with the road are not liable to puncture; The outer tire i being hard and comparatively narrow is not very liable to 1; side slip or skid. I

To insure an effectively'working wheel'of this character it is necessary to have a light constructionof'wheel, and to this end side. plates 'arej provided, said side plates being made of steel and being removably secured in position It is also necessary, in order to reduce friction to have bearings provided with anti-friction metal, said bearings working tightly against the side plates so as to prevent lateral play. If there is lateral plag considerable vibration-and noise is,cre ate;

1. A wheel for motor vehicles comprising,- 110 in combination, two wheels, one arranged.- within the other, theinner one being a 'pfieu-.

matie tired 'wheel "whilc the; outer. one con having anflinternaLdi-i n t e externaldiameter of, the. pneumatic] tiije' fog the innet-fwhe'el and 5 .ibemg' free to move-relativelywithsaid inner whe l-, sideplatesfin the; qilter' ,wheel' nd beaifm airan 'e'dibetweeiifthefinner wheel and said. side p ates,-said rings being pro:

:vida wah antennae-1 1mm 1 ble wheel a's to (acting-bearings O a is provided:with-.janttfrieti packing? n "the sidesf'of-the' rims he 1' wheel. and 'side platesattached toither {the outer wheel said--. sid.' Plat beingfiadapted tojwork on,

.. 7 d 11in in sombinstioma rotatable wheel a wheel sofitted outside at the rotatable wheel as to; ;;be capable of'independentmoyement therevi611,annular"side channels on the rim of the 'inner wheel, antifriction metalin the channel'sand' side plates on the outer wheel.

- 4e. -In' comb1ntion-, a wheel with a pneumatic tire thereon, a second wheel outside of bearings proyided with anti-friction packing oii'the sides-of the pneumatic tired wheel, said acking bearing against'said plates.-

- .matic tire thereon, a second wheelarrangedeccentrically outside of the pneumatic tired I wheel and having aspokeless rim, side plates 'in comb so. 'fitted outside .of the rotat "be capable of. independent in on, side rings on the rim 0 said rings having laterally rojecting annular q I i flanges, anti-friction metal in eombmati n; a'rotatabl wheel} afwheel oyement there v thepneumatie tired wheel and having a spokelessrim, flat steel plates removably' securedto the-rim and annular and laterally projecting- 5. combination, a wheel with a pneu- "secured to theta and annular a -mean 1 metal rings on the sides of the-pneumatic 40 tired whee Y r: .r ation, a rotatablew' ent therener wheel,

fth

inserted between the flanges and side plates secured to the of the outer wheel. I

. 7. In combination, a wheel with a pneumatic tire thereon, a second wheel outslde of the pneumatic tired wheel, and having a spokeless rim flat steel plates of circular form, saidplates being secured at their outer edges 5 tothe rim and being. free at their inner edges q \n V and annular bearings of anti-friction metal 20 3 Az-whee for tmotor yehiclescomprismg,

on the "side of the pneumatic tired wheel.

8-; A wheel for motor vehicles'comprising,

in combination, an inner wheelyan outer wheel capable of inde endent'movement on the inner wheel, side p ates bolted to the rim I of the outer wheel, said side plates extending inwardly to .such an extent as tov cover the rim of the inner wheel, a rubber tire on the. outer wheel, a pneumatic tire on the inner wheel, side rings secured tothe rim of the .inner wheel, concentric lateral flanges on said rings and rings of anti-friction metal fitted between the said flanges.- In testimony whereof I aflix my signature in presence of two witnesses,

GEORGE DOW ROSS.

' Witnesses:

WILLIAM FLEMING, JAMES AIKEN. 

